Add nlohmann/json as submodule

VisionR1 · VisionR1 · commit 84030c92bfe6 · 2026-01-09T23:31:37.000+02:00
diff --git a/app/src/main/cpp/json b/app/src/main/cpp/json
@@ -0,0 +1 @@
+Subproject commit 515d994acbac04e0efa41db21e0d16591f6f97c9
